hoffa. >> neither does john anthony who worked the hoffa case. he gives the tip zero credibility. >> whether they find a body or not, i don't know, but if they do, i guarantee you it's not jimmy hoffa. >> he said the fbi has a good idea who pulled off the hit and where, but it sure wasn't in this neighborhood. why could the fbi never find the body? >> because there is no body. the body, in our opinion, was cremated or was thrown into a vat of acid or whatever. >> whatever happened, the mafia backed teamster boss is legendary. celebrated in movies like this one, going up against u.s. attorney general robert kennedy. >> the justice department has plenty on you mr. hoffa. >> you don't impress me. >> i don't need $300 million and my brother elected president to [ bleep ]. >> over the years, many failed attempts to find him. tips had him buried in cement at the end zone of old giants stadium. they looked through blood stains in a detroit home and dug up a horse farnl in 2006. all dead ends. hoffa's middle name was riddle and so is trying to pinpoint w